Question about Cobra 29 LTD CB Radio

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What antenna would you recommend for my cb? cobra 29ltd

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Get a wilson-1000 best antenna around juice the 29 up with a power mod kit

Posted on Aug 07, 2010

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A mag mount is OK, but if the antenna is long, thick, center loaded, etc, it may slide across the surface due to speed, striking tree limbs, etc. An antenna with a coil at the bottom poses a lower wind resistance and is less likely to move. An antenna with a spring close to the base can help absorb shock from from striking low hanging objects - reducing the chances of it getting knocked off or sliding (and scratching paint). It is not unusual to find fine scratches on paint on the vehicle and damaged coax cable due to the constant stowing and installing of the mag mount. Some cheaper mag mounts are poorly made - with a thin waterproof seal over the bottom - that once penetrated will render the mount useless in a short period of time.

An antenna mount that is cut through the roof or trunk, is the best for power radiation, however is probably the least desirable due to the required punching of holes in the vehicle. They can leak if improperly installed and can cause issues when it is time to sell the vehicle.

The "lip" or "edge mount" provides a solid connection method and is well grounded. If installed correctly, will not move, scratch paint or contribute to high SWR. They leave little evidence of ever having been installed after removal.

"Through glass" types work ok, but rely on adhesive to remain in place. The adhesive seems to break down over time, and should probably be avoided.

102 inch stainless steel whip CB antennas seem to be the most durable. Usually, they are paired with a large spring and rugged mount designed for securing to the side of the trunk area of the vehicle. Due to the length of the antenna, it comes with a tie down to allow entry into garages, etc., 102 inch antennas are often viewed as "excessive" or "unsightly".

CB is limited to 5 Watts so all CB antennas will work. Using an RF amplifier add on can cause problems for the antenna if rated less that the power level of the transmitter.

Buy an SWR meter for use on CB or HF band. Tune your antenna for low SWR. Check the bandwidth of the antenna. Most CB antennas will be able to be tuned over the entire CB band. If you plan to transmit outside the band, you may not be able to get a low SWR on all the frequencies desired. An additional antenna tuned for the other frequencies, an antenna with a wider band width or the use of an external antenna tuner with be needed to lower the SWR to a point that will prevent damage to the transmitter. In any case, knowing the SWR for the antenna on the frequency on is required.

Lastly, running more than 5 watts AM or 12 watts SSB is illegal, as is transmitting on frequencies for which you lack a license. While maybe not easily caught - if you are, penalties are stiff. Think twice.

Posted on Oct 04, 2009

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Depends on what vehicle its going on. If its a car, you don't need anything crazy, unless you are going to run a linear.

You are fine with a wilson 500/1000 mag mount or a k40 mag mount.

just make sure you tune the antenna for lowest SWR.

Posted on Oct 01, 2009

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SOURCE: red antenna warning indicator light stays on

The red light is a warning of antenna mismatch; when you hold the antenna, you are changing the match between the CB's output amplifier and the antenna. Try it with a different antenna or pick up a 'test light' (or test load) for CBs from an electronics dealer, I've also seen them with CB accessories at truck stops. If the test light fires off and the red light on the CB is dark, the antenna you have is junk.

Posted on Aug 01, 2010

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1 Answer

Cobra 29ltd schematic dale earnhardt


It's the same as the standard 29LTD Classic. Here is a link to the schematic. http://www.cbtricks.com/radios/cobra/29ltd_chr/index.htm

Aug 24, 2014 | Radio Communications

1 Answer

My cobra 29ltd will transmit but want receive


three things you need to check the mic must be plug into radio, make sure that the radio is set to cb not pa,check your rf gain is turned all the way up and last of all check the antenna.Now that being said if the radio does not receive you might have to take it to a radio shop.

Jun 11, 2014 | Cobra 29 LTD CB Radio

1 Answer

I cant install my radio cobra 29ltd how i can do that


It would depend on the vehicle. For this model you need a power supply and a ground. You will also need an external antenna.

Jun 02, 2011 | Cobra 29 LTD CB Radio

1 Answer

Red antenna warning indicator light stays on


The red light is a warning of antenna mismatch; when you hold the antenna, you are changing the match between the CB's output amplifier and the antenna. Try it with a different antenna or pick up a 'test light' (or test load) for CBs from an electronics dealer, I've also seen them with CB accessories at truck stops. If the test light fires off and the red light on the CB is dark, the antenna you have is junk.

Aug 01, 2010 | Cobra 29 LTD CB Radio

1 Answer

Cb only has 200 yard range -- after that I can not hear anyone.


Check the antenna feeder with a meter (resistance range), try disconnecting the antenna from the end also this will check faults on the cable, if there is a resistance this usually means faulty feeder. If there is an infinatly high resistance this is fine. (open circuit)

or
Get a power meter and check the output power, if its lower than whatever high power should be 4-5watts on a non-sideband radio, then your output transistor/driver has blown.

Jun 15, 2010 | Cobra 29 LTD CB Radio

1 Answer

I have a Cobra 21- 23 channel CB and the wires pulled out of the plug. The mike wire has red,yellow black,blue,whiteand a ground. My plug has only four prongs to solder to. What four colors do I use?


Hello there
Here is the diagram for you
Cobra 29LTD, 29LTD ST, 29WX ST
Documentation Project
CBTricks.com

TIPS:
You need to have Acrobat Reader version 5 or newer installed to view the files with pdf_1.gif icon.
If the files with jpg.gif or gif.gif icon will not display see the Site FAQ for help on printing, viewing and using this information.
25ltd_st_sm.jpg
Click Picture to See Close-up
cobra_29ltd_st_29wx_st_side.gif 29LTD ST Owners Manual pdf_1.gif
29WX ST Owners Manual pdf_1.gif
DIAGRAMS
29LTD ST Schematic Diagram pdf_1.gif
29LTD ST Schematic Diagram gif.gif
29WX ST Schematic Diagram pdf_1.gif
WX Schematic Diagram pdf_1.gif
29LTD, 29LTD ST, 29WX ST Factory Service Manual pdf_1.gif
Page 1 to 11
Page 12 to 34
29LTD Factory Service Manual pdf_1.gif
29LTD
29LTD Schematic Diagram pdf_1.gif
29LTD Schematic Diagram jpg.gif
29 LTD Classic Schematic Diagram pdf_1.gif(Courtesy of Rick Jackson)



Mic Wiring
Stock
1- Shield
2- Audio
3- Transmit
4- Receive
Astatic (4 wire)
1- Shield
2- White
3- Red
4- Black

Astatic (6 wire)
1- Shield & Blue
2- White
3- Red
4- Black
Yellow NC
Daiwa EM-500
Cobra CA Series

1- Shield & Black
2- Red
3- White
4- Blue
Galaxy DC-521S (4 wire)
1- Shield
2- Yellow
3- Red
4- Black
Galaxy CB-660EI
1- Shield & Black
2- White
3- Red
4- Blue
Sadelta
1- Shield
2- White
3- Brown
4- Green
Turner
1- Shield & Red
2- White
3- Blue
4- Black
Yellow NC

Nov 17, 2009 | Cobra 29 LTD CB Radio

2 Answers

Help with cb radio


Hello there
here is a link for the scematic ok?
best regards michael

  1. Cobra 29LTD ST, 29WX ST 29LTD ST Owners Manual. 29WX ST Owners Manual. DIAGRAMS. 29LTD ST Schematic Diagram ... WX Schematic Diagram. 29LTD, 29LTD ST, 29WX ST Factory Service Manual ...www.cbtricks.com/radios/cobra/29ltd_29ltd_st_29wx_st/index.htm - Cached

Sep 15, 2009 | Cobra 29 LTD CB Radio

1 Answer

Cobra 29ltd


You have antenna or Coax Problems...

Apr 17, 2009 | Cobra 29 LTD CB Radio

1 Answer

Cobra 29 ltd when powered up error Y can anyone help me


Hi and welcome to FixYa,

Often an error code "Y" would indicate test/diagnostic result of the antenna. A communication equipment thus equipped would test the SWR and display this error code if:
  • no antenna detected; or
  • SWR of antenna is way too high.
Although am not familiar with the version of a Cobra 29LTD with this type of display. Could you pls post back the exact model of the radio, normally there would be two (2) more letters after the LTD something like Cobra 29LTD BT.

Good luck and Thank you for using FixYa. Happy Holidays.

Dec 19, 2008 | Cobra 29 LTD CB Radio

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